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I used to have exactly that same rock tumbler. I have a bunch of polished rocks out in my garden that the kids and I made with that thing.
I don't have the instructions, but there are some perfectly great generic instructions on the geology.com web site: http://geology.com/rock-tumbler/rock-tumbler-instructions.shtml
I used these directions with great success.
Posted on Dec 31, 2010
SOURCE: My daughter received an Edu
Wow that is a nice one you have, it is probably quieter with the plastic
cover. I use to tumble my rocks either in the basement or in an empty
drawer in my dresser to sort of block out some of the noise. The one I
had when I was younger was probably the first do it yourself old Smithsonian rock tumbler. I'd say that was probably one of the best gifts that I have ever received.
Well, first, you put the bag of rocks that you want to tumble in the tumbler. Make sure it only fills the barrel 2/3-3/4 full or you may have to extend polishing time.
then, usually you use the thickest to the thinnest grit in that order. You put the thickest grit in first and let the rocks tumble from 7-10 days (for optimal polishing). You will do this for each grit you use.
Make sure there is no grit transferred from one step to the next. Hope this helps :)
Posted on Dec 28, 2010
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